Brick-machine



(No Model.; 2 Sheets-Sheet 1.

G. J. WEBER.

BRICK MACHINE.

No. 309,589. Patented Deo. 23, 18811.

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(No Model.) 2 Sheets-Sheet 2. G. J. WEBER.

BRICK MACHINE.

No. 309,589. Patented Deo. 23,1884.

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GEORGE J. VEBER, OF BOONVILLE, MISSOUR.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 309,589, dated December23, 11.884.

Application filed July 30, i983. (No modell To LZ/Z whom t may concern.-

Beit known that I, (,IEoRGn J. Weinen, a

citizen of the United States, residing at Boon-V ville, `in the countyof Cooper and State ofl\[issouri, have invented certain new and usefulImprovements in lrick-lvlachines, of which the following is aspecification.

The principal objects of my invention are, first, to provide meanswhereby the return or backward stroke of the feeder and its accessoriesis produced by compressed air or vacuum, and, secondly, to improvedmeans for cushioning the reciprocating parts in such a manner that themachine will not be subjected to sudden shocks.

In order that my invention may be fully understood, I will proceed todescribe it with reference to the accompanying drawings, in whieh-Figure isa detail sectional elevation of a brick -macliine with vmyimprovements attached. Fig. Il is a side elevation on a larger scale ofthe link end of the piston-rod and aircylinder. Fig. III is an endelevation of the machine.

1 represents a suitable gear-wheel for driv-` ing a sheave, 2, carryinganti-friction rollers 3, Vwhich impinge against the angular or inclin'edface of a rocking lever,4,which is flexibly connected to a jointedplunger, 5, carrying the feeder (i.

Connected to the jointed plunger 5 is a bellcrank lever, 7, journaled ina suitable bracket, 8, and connected at its lower end to a vac- 4num-chest through the medium of a link, 9. This vacuum-chest consists ofan outer cylinder, 10, which slides np and down on a stationary core,11. The top of the cylinder is provided with a check-valve, 12, of anysuitable construction, for preventing the admission of air during theascent of the cylinder,while allowing` any air which may have enteredthrough the cock 13 to escape during its descent. The cock 13 is for thepurpose of regulating the quantity of vacuum formed in the chest. Thusit will be seen that the parts are by this means cushioned on theforward movement of the plunger 5, andas soon as the roller 3 has passedthe summit of the incline on the lever 4 the vacuum will rctractthcplunger to its normal position. The backward motion of the plunger iscushioned by the lower end ofthe cylinder 1l4 entering an annularairchamber formed by an annular collar, 14, surrounding the lowerportion of the core ll. This air-chamber is provided with 'a checkvalve,15, for confining the air during the descent ot' the cylinder 11, andfor admitting air to prevent the forming ofvaeuum on its ascent. Thiscylinder is also provided with a regulating-cock, 1G, for permitting arequisite qua-ntity or' air to escape to prevent a too sudden stoppageand consequent rebounding ofthe plunger.

Secured to the shcave 2 is a wrist-pin, 17, mounted and turning iu ablock, 18, sliding in a link, 19, in the end of the plunger 20, andcarrying a pistoirrod, 21., the head of which works in an air-chest, 22.This chest or cylinder is provided at each end with a checkvalve, 23,and regulating-cock 211, for the purposes already explained. Thepress-blocks 26 are operated by massive arms 27 27, fulcrumed touprights or standards 28, and connected at their rear ends bytoggle-levers 29 29,pivoted to a block, 30, to which the operat--ingpiston 20 is fulcrumed. `The press-blocks are loosely pivoted to theshorter ends of the arms 27,the lower one being guided in its path byits head working in an opening in the bed-plate 30which forms the mold,and the other guided by a cross-bar, 31, working in vertical grooves inthe corners of the uprights 28.

32 is a lug secured to the press-block 25, and a spring-catch secured tothe press-block 26, and working in a guidingv-strap, 34C. rlhisconstitutes the mechanism for elevating the brick out of the mold, itsoperation being as follows: Vhen the rear ends ofthe arms 27 are drawntogether, the tendency is to throw open the press-blocks; but by reasonof the catch 33 being in engagement with the lug 32, and the greaterweight of the rea-r ends of the arms 27, the upper press-block,25, willbe elevated,earrying with it the lower one. At this time the feeder 6moves forward, carrying the brick from between the press-blocks, theforward movement of the feeder also swinging the upper press-block, 25,on its pivot,which disengages the catch 33 and permits the lower blockto drop. .llhenew charge ol'clay, which is con- IOO tained in a mortisein the feeder 6,then drops into the mold, and the feeder returns to itsnormal position, and by means of the springs 35 returns and holds theguide-bar 3l to its seat. It willbe seen that while the lever 2O ismoving forward or backward the feeder 5 6 will be in its retractedposition and out of the way of the press-block, andthat while the lever20 is in its forward position and the pressblocks raised the feeder 5 6moves forward and returns to its normal position before the retractionof the lever 20 commences.

It is obvious that the relations of the valves and cocks may be changedat will for compressing air or forming a vacuum withoutdeparting fromthe spirit of my invention.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

1. In a brick-machine,the conibination,\vith suitable mechanism forforcing the feeder for-- Ward, of a vacuum-pump for returning it.

2. In a brick-machine,the combinatiomwith the feeder and suitablemechanism for forcing it forward, of a vacuum-pu mp for the purposeexplained, having a cheek-valve and regulating-cock, as and for thepurpose set forth.

3. In abrick-machine, the combination, with the feeder and suitablemechanism for operating it, of an air-cylinder having a regulatingcockfor preventing shoclnand a cheek-valve, as and for the purpose setforth.

4. In a brick-machine,the coinbinatioinwith a sheave carrying ananti-friction roller,and a vibrating lever having a cam-shaped head,connected to the feeder, for moving it in one direction, of an air orvacuum pump for returning it, as set forth.

' 5. In abrick-machine, the coinbinatiomwith the press blocks andsuitable toggle-levers connecting them, of an operating-lever connectedat one end to the toggle-block, and at the other to the main sheavethrough the medium of a wrist-pin mounted in ablock sliding in alinkformed in the aforesaid operating-lever, asset forth.

6. In a brick-machine, the combination,with the driving-sheave and aplunger connected thereto through the medium of a wrist-pin and a blocksliding in a link in said plunger, of a double-acting air-cylinder whosepiston is connected to the aforesaid sliding block, as and for thepurpose set forth.

7. In a brick-machine,the combination,with the driving-sheave andplunger,having1neeh anism, substantially as herein described, forconnecting them, of an air-cylinder having a cock and valve at each end,as and for the purpose set forth.

8. In a brick-inachine,a feederhaving springhoolrs, as and for thepurpose set forth.

9. In a brick-machine, the combinatiomwith a main sheave carrying ananti-friction roller. and a vibrating vlever having a cam-shaped headfor forcing the feeder forward, of a vacuuni or air pump for returningit, as set forth.

l0. The combination, with the feeder of a brick-machine, of vavacuum-pump consisting of a stationary core and sliding casing orcylinder provided with a suitable valve and regulating cock, as and forthe purposes set forth.

ll. A vacuum-pump and compressed-air cylinder constructed substantiallyas herein described, which consists of a central core having an enlargedbase provided with an annular groove surrounding said core, and' havinga suitable valve and cock, and a sliding casing or cylinder providedwith a valve and cock, adapted to slide overthe central core and enterthe annular groove, as and for the purposes set forth.

GEO. J. VEBEP.-

Vitnesses:

XV. G. PENDLETON, JNO. W. MooRn.

